Specimen Number43-4-026Alternate Number48-13-40CommentsMineralized chert nodule in St. Louis limestone.In Teaching CollectionNoMineral(s)chertcalcitefluoriteRock NameF oreDistrictRosiclareMineBlue DiggingsExternal LinkMindatGeo-LocationFairview shaft.Deposit TypeFluorsparGeo-Coords[1] Donated ByUniversity of Wisconsin-Madison Department of Geoscience